Metaphorical Kissing

Actor	Process: material	Goal		congruent
he	kissed	his sister
he	gave	his sister	a kiss	metaphorical
Actor	Process: material	Recipient	Goal

Because grammatical metaphor is a junctional construct, the metaphorical expression construes 'his sister' both as the Goal and as the Recipient of the Process 'kiss', and construes 'kiss' both as Process and as gift (Goal: the Medium of giving).

The advantages of the metaphorical construal of a process as a participant include:

• it can be sub-classified, as in he gave his sister a perfunctory and very reluctant kiss,
• it can be given thematic status in a message, and 
• it can be given modal responsibility in a proposition.

Time Phase Vs Reality Phase In Identifying Processes

Phase: time: inceptive

that cute little baby	became	Adolf Hitler
Token	Process: relational: identifying: intensive	Value

Phase: reality: realised

his first novel	proved	the most successful
Token	Process: relational: identifying: intensive	Value

For time phase vs reality phase, see here.

The Transitivity Of Labile Verbs

the pot	broke
Actor/Medium	Process: material

I	broke	the pot
Initiator/Agent	Process: material	Actor/Medium

See Halliday & Matthiessen (2014: 339, 351-3).

Halliday & Matthiessen (2014: 340):

As we noted above, if we examine the lexis of modern English, and look up large samples of verbs in a good dictionary, we find that many of them, including the majority of those that are in common use, carry the label ‘both transitive and intransitive’. If we investigate these further, we find that where the same verb occurs with each of these two values the pairs of clauses that are formed in this way, with the given verb as Process, are not usually intransitive/transitive pairs but non-ergative/ergative ones. There are intransitive/transitive pairs, like the tourist hunted/the tourist hunted the lion, where the tourist is Actor in both. But the majority of verbs of high frequency in the language yield pairs of the other kind, like the tourist woke/the lion woke the tourist, where the relationship is an ergative one. If we express this structure in transitive terms, the tourist is Actor in the one and Goal in the other; yet it is the tourist that stopped sleeping, in both cases. Compare the boat sailed/Mary sailed the boat, the cloth tore/the nail tore the cloth, Tom’s eyes closed/Tom closed his eyes, the rice cooked/Pat cooked the rice, my resolve weakened/the news weakened my resolve.