Contrary to what some may think, feelings are just as important as philosophy in devotional service. Philosophy without religion is dry speculation. Without personal involvement and commitment, philosophy becomes callous and impersonal. A lover's heart is full of so much concern for the beloved and all that relates to the beloved's service, tadiyanam samarcanam. Bhakti is the realm of spiritual emotions.
Love is an experience that transcends philosophy.
Feelings in regard to devotional service are important. It's okay to have feelings, because by nature we are sentient beings. On the other hand, religion without philosophy becomes sentimental. Sentiments should be accepted for what they are, but we must understand that until we reach the level of bhava, our feelings are to some extent impure. To that same degree, our philosophy will also remain faulty, immature or theoretical.