Whole life explained in a song

Whole life explained in a song..
..
Age 1 to 15: Niano mein sapna
.
15 to 25: Sapno mein sajna
.
25 to 35: Sajna pe dil aa gaya
.
35 to 75:
.
.
.
Kion sajna pe dil aa gaya.. :P :D