Kundalini can awaken naturally for spiritual and religious practitioners.
If you have the following spiritual practices regularly, kundalin can awaken naturally.
1) Chanting of a beejakshara mantra
2) Kundalini Pranayana
3) Kundalini Kriya practices
4) Idol workship of certain kinds
Learn Shanthi meditation to keep the awakened kundalini under control.
Be Blessed by the Divine! Krish Murali Eswar.