What does the Nahel transfer?

[+Oltux72 he/him]

It seems to allow telepathy. What else is transfered? Does Sylphrena get drunk with Kaladin? Or, worst case, the Stormfather? To which extent are sensations transfered? Do spren get sensations they are not classically subject to? What does Sylphrena feel when Kaladin really needs a toilet right now?

[Quantus he/him]

Standard I think it only transmits Thoughts and Emotions.  As far as I can recall only the Godspren have managed to transmit any sensory information and only of themselves, ie. Sight from the Storm's perspective, or merging senses with the Tower itself to feel and control its systems.  

But then (if I recall correctly) for the rest it started with basic emotions and the actual Thought telepathy came later with higher Oaths and a stronger Bond .  If that is indeed the case, then it's possible more capabilities will emerge as the work up the Ideals.