Why illness and sufferings?
tantra, mantra, yantra, rudraksha, sfatika, temples, hindu gods, shri yantra,
Though in this world there are millions of different species of living beings
only man and few of his pets like cow, buffalo, cat, dog, etc need doctors to
cure their illnesses. All other animals, birds, small organisms which may be
living on the earth or in deep sea, all their ailments are cured by the nature
itself. They don’t need any doctors or medicines. This is because of artificial
and unnatural modes of living of the human beings. Punishment for this is
immediate. There is no way of escape. The only remedy is to return to nature.

Ayurveda and Tantra give remedies for physical and psychological illnesses.
Tantra also gives lot of other magical techniques for lot of human problems.