That which takes one from one Paryay (body form) to another is known as destinity (Gati).
There are four kinds of destinities (Gatis)-Narak Gati (Hellish beings), Tiryanch Gati (Subhuman beings), Manushya Gati (Human beings) and Dev Gati (Celestial beings).
1. Narak Gati-Due to Nam-Karma effect, one is born in hell & it is called as Narak Gati. In hell, misery of killing & torture is going on all the time among the inhabitants .There is not a single moment of peace of mind.
2. Tiryanch Gati-Due to Namkarma influence, living beings are born in Tiryanch Gati. In this Gati, they suffer the miseries being elephant, horse, Vikalatraya & Sthavars.
3. Manushya Gati-Due to Namkarma influence one is born in Manushya Gati as a man (male), woman (female) or neuter gender.
4. Dev Gati-Due to Namkarma influence one is born as a celestial being or deity. Deities have Vaikriyak body and enjoy the divine pleasures.
Dear children! which Gati do you like out of four?
Sir, we like the human birth.
Why so ?
Because in Manushya Gati, we can observe religious deeds & practice penance & destroy the Karmas, thus our soul can be liberated.
Very well children! you have understood correctly.