Looking for lyrics for Tell me What is True Love (Bert Jansch)

I’m working on Bert’s beautiful song, Tell me What is True Love and am having trouble figuring out all the lyrics. Google has been uncharacteristically unhelpful.

Here’s the tune and the lyrics that I’ve figured out.

Tell me what is true love

Tell me how shall I learn?
Shall there be a sign like autumn
That brings the winter and snow?

Well love is like a little boy
Building castles in the sand
And the higher he builds them
The longer they stand

Well if someone lets you down
The white snow [CAN’T FIGURE THIS BIT OUT]
Then your heart is filled with sorrow
With the pain of true love

Any takers?

UPDATE

I posted this question on my own guitar forum and discovered that somebody had asked the same question fairly recently (The forum is unviewable to unregistered users in an attempt to keep spammers and bot signups at bay).

So here, in all their glory, are the complete lyrics:

Tell me, what is true love?

Tell me, how shall I know?

Shall there be a sign, like Autumn

That brings the Winter her snow?

Now love is like a little boy

Building castles in the sand

And the higher he builds them

The longer they stand.

And if someone did shoot down

The white snowy dove

Then your heart is filled with sorrow

Like the pain of true love.

I’ve got the picking pattern down and the chord changes are coming along. There are just two rather pesky chords, but it’s coming. A deceptively difficult tune to play, but ultimately worthwhile!