Slokam 10

Parasurama is able to resurrect his father.  The resurrection probably happens only because there is no fault or wrong that was committed by Jamadagni in this  entire episode.   Even his action on his wife Renuka for her momentary lapse is  forgiven by him at the request of Paramurama. 

The powerful message for us from the slokam is that as long as we are not infected by temptations and desires,  and as long as we stick to the path prescribed by the scriptures our journey through this life cannot be impeded or obstructed and we will not be required to face the destructive tragedies of this mortal existence.  Sage Jamadagni is dedicated to spiritual practice,  and did not harm anyone.  He cannot be destroyed due to an unjustified reason.  The slokam intends to emphasize that Jamadagni was violated only by Karthaveeryarjuna, and there was no damage done or intent to cause damage to Karthaveeryarjuna by Jamadagni

This is the universal rule of life. If we restrain ourselves from inappropriate action,  and more importantly,  if we have purity of intent in all our actions,  no destructive force in the world will impact us.

Parasurama is able to defeat the forces of the Kshatriyas in twenty one battles.  The blood of the Kashatriyas decimated by Paramsurama is described as filling the huge lake of Samanthapanchaka. 

The land of Kurukshetra was in the ancient times called Samanthapanchaka (five lakes of blood). It later came to be known as Kurukshetra as Kuru performed asceticism in that place...         

SAMANTHA-PANCHAKA OR THE FIVE HOLY LAKES Between the Treta and Dwapara yugas,

In performing the rites to his forefathers,  Parasurama is said to gift away all the lands to Kashyapa and others. 

Kashyapa (Sanskrit: कश्यप, romanized: IAST: Kaśyapa) is a revered Vedic sage of Hinduism.^[1] He is one of the Saptarishis, the seven ancient sages of the Rigveda,^{[note 1]} as well as numerous other Sanskrit texts and Indian mythologies.^[4][5] He is the most ancient Rishi listed in the colophon verse in the Brihadaranyaka Upanishad.^[6]

Parasurama is advised by Sanaka and others to cease his battles with king Salva,  since the king was destined to meet his death at the hands of Krishna Paramathma.

Extract from Wikipedia

Salwa (also written as Śalva [Shalva]) is a kingdom grouped among the western kingdoms in the epic Mahabharata. It was close to Madra Kingdom as both are mentioned together in many places. Saubha was its capital. Martikavati (alias Matika, Matrika, Matrikavati) also was mentioned as the capital of Salwa kingdom. The famous prince Satyavan was from Salwa. He married the Madra princess, Savitri, the daughter of Madra king Aswapati. Their history is a famous narration in Mahabharata. Seven chapters 3:291 to 3:297 is dedicated to this history of Satyavan and Savitri.

Salwa king contemporary to Krishna

Yet another Salwa king (3:12, 7:11) attacked Dwaraka, this Salwa king was an ally of Shishupala, Dantavakra and Rukmi. According to the narration in the epic, he possessed an aircraft known as Saubha Vimana and used it for travel and for aerial warfare. In detail, according to mahabharata, when Krishna had gone for Pandavas Rajasuya, king of Saubha attacked his city Dwarawati. To encounter him, Samva, Charudeshna, Pradyumna(Rukmani son) came out. They speedily defeated enemy commander and made him flee the battle, and killed all of the Danavas aiding him in battle by fiery weapons. To fight enemy king, Krishna son Pradyumna challenged him. They first commenced an aerial battle and later for better encounter descended from their cars. They both started to pierce each other with greater weapons making other unconscious each time. At last when about to be killed, King Salwa retreated from battle. When Krishna returned, he found his city gardens and damsels devoid of beauty. Upon knowing everything that had happened, he promised them to slay his enemy. Krishna with his army marched for the attack and found King Salwa in an island pursuiting ocean coarse. And when battle began, both side started to shower arrows upon each other. Krishna started to kill all the Danavas aiding to the latter side. Seeing his side at loss, Salwa used an illusion causing enemy heroes to get confused of the environment and killed Krishna charioteer. And also made Vasudeva to get stuck in his illusion causing him to desist from fight. Later concluding in his mind that it was illusion he recovered his senses and started to fight afresh by discharging fiery weapons. Seeing this opponent Danavas showered mighty rocks upon them killing Krishna steeds but Krishna destroyed their shower by using thunderbolt as his weapon. At last, Krishna hurled his powerful discus Sudarshana and killed all the remaining tribes including Salwa. Killing everyone at the lord command it returned to Krishna.^[1] (See Dwaraka Kingdom for more details).

Paramasurama is in the Treta Yuga. King Salwa takes birth again in the Dwapara Yuga, to meet death at the hands of Sri Krishna.  

Sanaka is one of the four mind-born sons of Brahma.  This indicates the eternity of the four sages who transcended the yugams.  They are invoked by meditation. 

May we ever remain pure in intent and action.  May we ever meditate to invoke the guidance of the Paramathma in all our intent and actions.