If anyone really wants to see if Buddha Dharma works, try Medicine Buddha!
ANYONE can do it...it is the safest, the most powerful practice there is in Buddhist tradition.
In my experience, even merely repeating the name without the mantra is powerful, it brings such coolness in your body -- destroys any skin ailments almost immediately, stops pain, both psychological and physical. http://landofmedicinebuddha.org/index.p ... Itemid=197
Any living being who hears the name of Medicine Buddha never gets reborn in the lower realms-that's the benefit, the power of just hearing the name, the mantra. Buddha asked his attendant Ananda: "Do you believe this?" and Ananda replied, "Yes I believe what the Buddha says." Then Buddha said "Why?" Ananda replied, "Because Buddha has inconceivable qualities, therefore I have no doubt." Then Buddha said, "Even animals who hear Medicine Buddha's name from that time on will never be reborn in the lower realms."