Material Desires cannot be given up, just by conviction or will power. Our mind is attached to things, people, situations and to our addictions, over millions of lifetimes. Dhyana is a tool that happens well undertake and keep ourself humble, limited to the strict instructions of Guru, food restrictions and following the do's and dont's of Yamas and Niyamas (Values and Practices). Under such circumstances only Dhyana shall bear fruit. Under such conditions alone shall Dhyana cure our Material Fever.