Have Faith in God.

For verily I say unto you, That whosoever shall say unto this mountain, Be thou removed, and be thou cast into the sea; and shall not doubt in his heart, but shall believe that those things which he saith shall come to pass; he shall have whatsoever he saith.

Therefore I say unto you, What things soever ye desire, when ye pray, believe that ye receive them, and ye shall have them.