About two decades ago, when as a wandering yogi seeker, I was meditating in the caves of Arunachala. There was this young monk, Muthu aged 14 who had started his first week of meditation in the same cave. The next day morning we went up to see Guru Ayya who had been meditating for years drinking just a cup a milk a day (Guru Ayya did this ‘tapas’ penance for 18 years and then continues to do so today in his village- his 24th year).
Muthu asked Ayya, whom he considered his Guru, “What do I need to do to really be able to meditate and go within?” Guru Ayya mentioned- “Have 3 fistful of nuts each day, drink plenty of water and keep your Lamp lit beside you”. Muthu then asked, “Why the lit Lamp?” Ayya answered, “When you light your Lamp you are connected to all your Gurus and God. The Lamp will serve and guide you”.