Expectation and its effects

The word 'expectation' is ubiquitous. The advisor has some expectations on the advisee.
The student has some expectations from the course she/he is taking. You might be expecting to land a job soon. The lover expects his lover to reciprocate his show of love. "We have high expectations of our employees", says the employer.
Let's say that you are expecting an important email. I have noticed many times, that when I expect an email, I sometimes don't get it, when I let go of that thought, and check my email, there it is sitting in the inbox, when I didn't expect it at all.

Expectation as far as I have come to realize is something that I can do without in life. Why? "Because it interferes with creation". We are creating every moment in our life. We are drawing our future landscape right here, right now through our thoughts, words, actions and our state of being. These four tools (thoughts, words, actions and beingness) are the tools of creation. What expectation does with this process is, it creates a sense of doubt in your creations. Why?
When you expect an email for instance, and you don't get it, there is an element of doubt that arises in your mind. Why is that person not sending an email. This 'doubt' is actually a 'thought' that interferes with your creation. Your creation is intended to bring you that email, but the expectation, which is just another thought, counteracts that creation unnecessarily because, well, thoughts are creative and hence expectation is also creative, only that the 'creation' of the expectation goes against your original creation because of the element of doubt.

Hence, it is always better not to have expectations on the behavior of any person or event in life. Then creations will always be as you intended, because, your intentions haven't been modified by the expectation.

Hence, masters, I believe, intend things and don't give a second thought to it. Because, they don't give a second thought, the first thought, which was their intention manifests without interference from successive thoughts (or expectations).