There is a popular proverb which says “not everything is as it seems”.
Robert Crosbie wrote.
“The greatest thing most students have to guard against is self-deception. The versatility of the lower Manas in this direction is beyond characterisation. So we have to watch to see whether our ostensible motives are not cloaks for underlying ones. By this course we will gain insight and strength.” 
We need always to be vigilant. It’s not easy, and sometimes we will not like what we will find under the surface. But this is a process that will give us “insight and strength” to refine ourselves and to make the next step ahead.
Best regards, Joaquim.
 “Book of Quotation from Robert Crosbie”, Theosophy Company, Bombay, p. 45.