This is the 15088th most frequent Turkish word.
seyahatten
"From the journey/trip."
Here, 'seyahatten' is used illustratively in its ablative form to indicate a source of action, in this case, from the trip.
Seyahatten döndüğümde her şey değişmişti.
When I returned from the trip, everything had changed.
In this usage, 'seyahatten' specifies the time frame or event following which the action of resting happens.
Seyahatten sonra dinlenmek iyi olur.
It would be good to rest after the trip.
The word 'seyahatten' describes the origin of the acquired information, denoting the trip as the event where acquisition occurred.