Dear @ Gayathri, Your wish is unique, and so seems your inclination, which towards the divine. In my opinion, Clairvoyance is an elite capability and it seeds in a person’s consciousness. Its an endowment given by the Divine and so its a very very personal ability, blessed to persons who are already spiritually elevated. It does not mean that people who has a long spiritual practice record may possess Clairvoyance. It may be present in a novice without even his/her knowledge. What is required is to discover this asset within oneself.
The Reiki Master, has rightly said that it requires a lot of effort, patience and self preparedness. As PJ has advised, you may please start likewise, but simultaneously, one has to cleanse and activate his/her Third Eye. The Third Eye or the Ajna Chakra is the medium to see the Divine happenings. So one should focus on it. I may also warn, that this activation may also give a side effect and emotions like ego, complex of superiority and like emotions may spurt out too. You may take it as an examination from the almighty. If one gets drowned in such emotions, the accomplishments so acquired may be drowned too alongwith.
Humility is the basic step in spirituality and one should not lose this virtue. I wish all the best to you in this voyage. Your ascent in Spirituality will itself apprise you of your level of accomplishment. Do share your experiences (although it will be difficult to explain).