as Mr.K stated, the lack of definition in the grant does not preclude any particular use nor does it allow it. The land in question often helps to define intent. Simply put; if you grant an easement for ingress and egress to a business, you can expect business related traffic. If the property the dominant tenant owns was obviously commercial in nature in some way, his argument would simply be; it was known this was a commercial property and therefor servient tenant was aware there would be a commercial use of the easement.
Without knowing what **** are (I suspect it's trees), the conversation predating the grant could be critical.
as well, the intent of the grantor is generally considered to be a defining point of the grant. If you can argue you intended the easement to be for personal use only, it generally holds some weight.

