You can most certainly help others through your thoughts, and they can help you. Every good thought you send to another is a living force. However, the person you are sending the thought to has to be asking for the same thing you are sending. If the person does not want it, then they are not in harmony with your thought, and it will not reach them.
You cannot create in another's life against their will, but if it is something they want, your thoughts are a real force that help them.
~From The Secret Daily Teachings by Rhonda Byrne
~photo by Sylvain