well my point of u is destiny cant be changed and future is in ur hands.
palmistry lines tell u the difficulties or may be something abut married life etc. and astrology helps u in finding which thing is best for u. that help in making ur future gud. like if u r student which field will be gud or can do best efforts.
belive it or no, cant say wt they tell u is completly right, but some how they help u. and know wts better for u is nt shirk.