No, becoming a Buddhist requires accepting a new epistemology, this is what it means to take refuge in the dhamma. For example hindrances are characterized as having a limited range of mental expansion, in western terms ‘small-mindedness’:
"In that case, the disciple of the noble ones considers this: ‘Sensuality here & now; sensuality in lives to come; sensual perceptions here & now; sensual perceptions in lives to come: both are Mara’s realm, Mara’s domain, Mara’s bait, Mara’s range. They lead to these evil, unskillful mental states: greed, ill will, & contentiousness. They arise for the obstruction of a disciple of the noble ones here in training. What if I — overpowering the world [of the five senses] and having determined my mind — were to dwell with an awareness that was abundant & enlarged? Having done so, these evil, unskillful mental states — greed, ill will, & contentiousness — would not come into being. With their abandoning, my mind would become unlimited, immeasurable, & well developed.’
Developing awareness of the spatial state of the mind relative to the type of thought is the task of the third foundation of mindfulness (Majhima Nikaya 10):
“When the mind is constricted, he discerns, ‘The mind is constricted.’ When the mind is scattered, he discerns, ‘The mind is scattered.’12 When the mind is enlarged,13 he discerns, ‘The mind is enlarged.’ When the mind is not enlarged, he discerns, ‘The mind is not enlarged.’