Markandeya

Markandeya maharshi
Sage Mrikandu with his wife Marudvati, Both were devotees of Shiva. The couple was childless, and so decided to perform austerities so they would be blessed with a child. Then one day, Shiva appeared before them. Shiva asked the couple if they desired an ordinary son who would live a long life, or an exceptional son who would live a short life. The couple asked for the latter.

In due course, Marudvati gave birth to a boy and the child was named Markandeya (literally: son of Mrikandu). Markandeya was an exceptionally gifted child, and became an accomplished sage early in his childhood. He was especially devoted to Shiva, and had mastered the MahamrityunjayaMantra(chanted to prolong life span). At the age of sixteen, his time on this earth had come to an end, and so Yama, death personified, came to take him away. At the time, Markandeya was in a temple worshipping the icon of Shiva (Shiva Lingam). When he saw Yama, out of fright, Markandeya grabbed a hold of the Shiva Lingam and asked Lord Shiva to protect him. Yama threw his noose around the boy-sage, which encircled the Shiva Lingam too.
Suddenly, the Shiva Lingam burst open with a thundering roar and a majestic, fiery form of Shiva appeared out of the blazing light. Enraged that Yama should have the audacity to encircle the Shiva Lingam with his noose, Shiva struck down Kala (Yama is also called Kala, time, since time brings death to all things) with His trident, and Kala was no more. Markandeya was spared from death. Shiva blessed Markandeya with eternal life and proclaimed that he shall forever remain a sixteen-year-old sage. The assembly of Devas who had witnessed the spectacle begged Shiva to revive Yama, as a world without death would put unnecessary burden on the earth. Shiva then revived Yama, and declared that His devotees were forever to be spared from the noose of Yama.
The form of Shiva that appeared to save the boy-sage Markandeya is worshiped as Kalasamhara Murti(kala-timeorlife,samhara-make end)
samhara doesnt considered in a bad aspect,it is the begining of another life cycle(law of nature).
The story of markandeya shows that perfect bhakthi(devotion) can even defeat death.