[quote=TheUnknowable]
I took "reach out with your feelings" to be related to "a Jedi can feel the Force flowing through him." In that sense, "feelings" aren't emotions, but perceptions. When Obi-wan first tells Luke "reach out with your feelings", Luke is trying to learn to sense the remote droid so he can deflect its attack. Soon after that he tells Kenobi "I almost see it.", relating the "feelings" he was reaching out with to one of the basic five senses, or ways of perceiving the world.
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I find this hard to believe. When Luke went into the tree it was his fears and his anger that crafted the image of Darth Vader. When he was to lift his X-Wing from the swamp his fears and unwillingness to believe that stopped him from raising the ship. When one reaches out with the force, those that you are related to, or care and love are much easier to contact. In addition, falling to the dark side involves giving into your anger, hatred and fear. From this, I can see nothing but emotion involved with the force in the original trilogy. 

It also would make a lot more sense for a Jedi to focus on control; Control, one must learn control! If the force is an extension of life and emotion, then unfettered, uncontrolled emotion could result in unintended consequences. Why bother with controlling your emotions if you're eschewing them. Additionally, If the Jedi focused on apathy then they aren't very good at suppressing emotions. The Jedi seem to show a ton of emotion. Obi wan laughs continually, making light of things, Mace Windu was angry nearly all the time, (but then, when isn't Samual L. Jackson playing an angry black person?) and Aayla Secura should have probably put some clothes on. For a group that denies emotion, they certainly aren't very logical or even have much in the form of common sense.