What does "の先" mean in this line


I translated this song a bit ago for practice and, looking at it again, I am
wondering what 先 means here:

> ゆるりと 春を愛づる日に
>
> 袖振り合う縁の先
>
> 私はあなたと出会った

Do you think 先 means "end of our relationship" or "start/future of our
relationship" here? For context, the speaker ends up dying at the end of the
song (being killed by her lover no less), and so "end of our relationship"
might make sense.

The 袖振り合う bit comes from the 袖振り合うも他生の縁 proverb which means, "Even a chance
acquaintance (started by sleeves brushing by each other) is decreed by
destiny." The reason I didn't initially translate 縁 as destiny here was
because of the context where the speaker is talking about her relationship (I
think it was used sort of like a play on words but I could be wrong.) Also,
the speaker sings えん, so 縁 is definitely either relationship or destiny, and
not edge or memento (this kanji is used for too many words :). I have a rough
translation of this line, but I am not confident in it at all:

> On a day when I leisurely admire spring,
>
> (it is) the end of our relationship sparked by sleeves brushing by each
> other
>
> I met you by chance

Another thing that's tripping me up is the lack of particle after 先, so I'm
just assuming that it is だ.

On the chance 縁 does mean destiny here, could the line mean something like:

On a day when I leisurely admire spring,

(It is) the destination of (a) fate where our sleeves brush by each other,

I met you by chance

So what is your take on this, there is every chance I have been staring at it
for too long and am completely off :) Also please note I am more interested in
understanding the Japanese than making the translation pretty at this stage,
so that's why its sort of a mess :)




So you know the aphorism : [袖振り合うも多生の縁](http://kotowaza-
allguide.com/so/sodefuriaumo.html),

According to 故事ことわざ辞典 in the link,

> 袖振り合うも多生の縁とは、知らない人とたまたま道で袖が触れ合うようなちょっとしたことも、前世からの深い因縁であるということ。

Also English translation is

> Even a chance acquaintance is decreed by destiny.（偶然に知り合うことも運命による）

I think 袖振り合う縁の先 is described in the same sense and the situation is described
as "node" or "event" retrospectively by the author. In other words, _" the
event of sleeves brushing by each other"_ is destined. This remind me of
["Indra's net"](https://en.wikipedia.org/wiki/Indra%27s_net), Buddhist
philosophy.

To my interpretation, " _ **(started by sleeves brushing by each other)**_ "
is bit off, it may not affects the interpretation of the lyric though. I want
to interpret it in a more abstract way as "node" or "event" rather than
"start/future of our relationship". I mean your interpretation sounds more
dramatic and focused on the instant moment of ゆるりと 春を愛づる日に, but I think
袖振り合う縁の先 is used as a metaphorical sense.

