Can Faith Be Blind ???

Man's ability to rationally relate the causes and consequences and thereby further integrate his knowledge on its basis is perhaps one of the most important factors to which we owe the overall process of evolution. How far is it correct (on a moral and ethical basis) to snatch away from him a right such as this. Rationality is perhaps in the nature of man. Do we not take away from him a tool , a means and render him handicapped and at the mercy of others who still wield this power of rationality and logic. Can we ever explain 'Blind Faith' logically? Can faith be blind? Let us see the issue from a logical perspective . Considering that a person X says he has blind faith in another person Y. Now the fact that he could choose between this 'Blind Faith' and some other or between a 'Blind Faith' and 'No Blind Faith' implies that he has a certain principle which he considers the basis for having made this choice . This indicates that the 'Blind Faith' is based on some principle which overrides it and his blind faith shall continue only as long as the 'Blind Faith' and his principle are coherent. In the event of a conflict between the choice taken and the underlying principle a person will have to disregard either the choice or mould his principle accordingly to finally make them coherent. What can be concluded , is that even when one makes a choice unconsciously there lies an underlying principle of which he might be oblivious . But the fact that there lies such a principle negates the notion of a 'Blind Faith'.